docs: def get_pattern_additional_cycles(self, patternnumber):
          """Get the number of additional cycles for a given pattern.
  
          Args:
              patternnumber (integer): 0-7
              
          Returns:
              The number of additional cycles (int).            
              
          """
          _checkPatternNumber(patternnumber)
  
          address = _calculateRegisterAddress('cycles', patternnumber)
          return self.read_register(address)